leave together the next day. Arturo concludes that they are lovers, and after Alaide has returned to her cabin, he confronts Valdeburgo furiously and demands revenge. The men fight a duel, Valdeburgo is wounded, and he falls into the lake. Alaide then appears and Arturo declares that he has killed his rival, but Alaide, heavily shocked, reveals that Valdeburgo is actually her brother. Upon hearing that news, Arturo jumps into the lake in an effort to save Valdeburgo. Attracted by the shouting, a crowd finds Alaide standing with Arturo's bloody sword, and they accuse her of murdering Valdeburgo. She is dragged off as a prisoner. Act 2 Scene 1: The great hall of the Tribunal of the Hospitallers Alaide is brought to trial before the assembled judges, but concealed beneath a heavy veil. Osburgo testifies against her. When asked her name by the presiding Prior, she responds only with La straniera. The Prior feels that he has heard her voice before, and he demands that she prove her innocence. She is reluctant to say much more. Suddenly, Arturo rushes in and proclaims her innocence and confesses his own guilt, stating that he killed someone whom he assumed was a rival. All appears to doom both Alaide and Arturo when, into the chamber Valdeburgo suddenly appears, announcing that Arturo is innocent and that it was in single combat with Arturo that he fell into the lake. The Prior again demands that Alaide reveal her identity, but she refuses. However, she does agree to lift her veil for the Prior alone and he gasps upon seeing her face. Immediately, he sends her away with Valdeburgo. Arturo is left alone, while the Prior chastises Osburgo for his false testimony against Alaide, stating that his actions will be watched. Scene 2: In the forest but close to Alaide's cabin Arturo comes to beg Alaide's forgiveness and confess his love, and, as he is about to enter the cabin, he encounters Valdeburgo, who again pleads with Arturo to desist in his attentions toward his sister, demanding that he draw his sword: (In an extended duet, first Valdeburgo —Si...Sulla salma del fratello / T'apri il passo, a lei t'invia / "Yes, over the corpse of her brother / Clear your way and approach her"—then Arturo—Ah, pietà... non io favello; / È un amore disperato / "Ah! have pity.... It is not I who speaks; / It